I wouldn't spend too much on RAM though- for comparison, start by looking at 2GB OCZ platinum pc6400 for $175 at NCIX whioch is a great deal, and then see how good you can do for 260 or less in terms of latency. You can get some good RAM for that price if you watch the specials at NCIX or here.

RAM is at a very low point in pricing right now, and will be going up again later in the year. that OCZ RAM is almost 100 bucks cheaper than it was just at Christmas.